Poly[aqua­[μ-1,2-bis­(pyridin-4-yl)ethene-κ²N:N′][μ-5-(diphenyl­phosphino­yl)iso­phthalato-κ³O¹,O^1′:O³]nickel(II)]

In the title compound, [Ni(C₂₀H₁₃O₅P)(C₁₂H₁₀N₂)(H₂O)]_n, the Ni^II cation is coordinated by three O atoms from two 5-(diphenyl­phosphino­yl)isophthalate anions, two N atoms from two 1,2-bis­(pyridin-4-yl)ethene ligands and one water mol­ecule in a distorted octa­hedral geometry. Both 1,2-bis­(pyridin-4-yl)ethene and 5-(diphenyl­phosphino­yl)iso­phthal­ate bridge the Ni^II cations to form polymeric layers parallel to (001). In the crystal, O—H...O hydrogen bonding links layers into a three-dimensional supra­molecular structure.